Paper-feeding mechanism.



H. G. OS'BDRN. PAPER mmm MEGH'ANISM,

APPLIGA'HON FILED DBG. 21. 1908. v ggpggs v Patented Apr. 23, 3912.

2 SHEETS-SHEET 2,

- *Unirse stares earner ersten..

HENRY C. OSBORN, CF CLEAELAND, OHIO, ASSIGNOR TO THE AMERICAN MULTIGRAPH COMPANY, 0F CLEVELAND, OHIO, A CORPORATION OF OHIO.

PAPER-Pennine MECHANISM.

Specification of Letters Patent.

Patented Apr. 23, i912.

Application filed December 21, 1908. Serial No. 468,636.

To all whom it may concern.:

Be it known that Hnxiir (l. Osnoiin, a citizen of the United States, residing at. Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Papeill`eediiig Mechanism, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

The object of this invention is to provide a simple and effective paper feeding mechanism for printing machines.

The mechanism is well adapted for use in conjunction with rotary printing machines, using individual sheets of paper, and is shown herein as embodied' in such machine, which, illustrated, is formed to carry in 'dividual type in parallel lines and print through an inliing ribbon.

One of the advantages of my invention is the absolute registration of the successive imprints, irrespective of the speed of rotation of the machine.

The invention is hereinafter more fully described and its essential characteristics set out in the claims.

In the drawings, Figure l is a vertical section through a rotary printing machine of the type known as the Multigraph, equipped with my paper feed; Fig. 2 is a sectional front elevation of a portion of such machine; F ig. 3 is a plan below the printing drum; Fig. et is a perspective of the upper feed roller; Fig. 5 is a perspective of one of the stopping fingers; F ig. G is a sectional detail showing the feed rollers on an'enlarged scale.

Referring first to the printing couple shown; this will be seen to consist of a rotary drum A, having on its surface longitudinal rails adapted to carry parallel lines of individual type, and cooperating with its drinn a platen B which is shown as geared to the drum by. gears b and a. The platen projects upwardly through a horizontal bed C which constitutes a feed table. The drum may be mounted on a shaft a? journaled in frame standards, one of vifhich is shown at C', and any suitable means, as, for example, a frank D may be employed for rotating the drum.. The type may be inked in any suitable mannen-the mechanism shown consist-ing of a ribbon E adapted to extend over the face of the type and having its wound up ends carried on spools F and F' journaled within the drum.

My invention, in the embodiment shown, provides a paper feed adapted to coperate with the printing couple described, and feed paper thereto accurately and under perfect control. This paper feed will now be described.

Snitably journalcd in the frame of the machine is a lower feed roller composed, as shown, of elastic sleeves G mounted on a shaft g, the sleeves being separated to allow stop fingers to stand betwccntheni, as hereinafter described. Asnitable gear y' on a shaft y meshes with a gear Il which meshes with the gear Zion the platen so that the lower feed roller is constantly driven. This lower feed roller occupies an opening c in the feed table,-the upper surface of which is approximately tangent to the roller. l

Above the roller (i is an upper feed roller J which is shown as a continuous metal roller extending across the various elastic sleeves (l. This roller is carried by a stiff bar K extending parallel therewith, the roller being journalcd in an ear 7.2 extending from near one end of the bamand an arm 7c extending from near the other end. The bar is pivoted to the frame of the machine behind the roller by studs L which enter openings It in the ends of the bar. The arm at one end of the bar K extends forwardly beyond the roller J and is there bifurcated and there carries a roller N. This roller is in position to be a ved upon by one or more cams P which are adjustably carried by the druin,--the cams being a.`portion of rings extending around the drum. Two cams are shown in Fig. 2, eithen of which may act on the roller N.

Loosely journaled on a shaft R paiallel with the feed rollers are lingers S which extend backwardly toward the platen and lie between the elastic sections Gr of the under feed roller and occupy openings c in the feed table. These fingers may be made of sheet metal bent into a channel shape, as shown in Fig. 5. They are pressed upwardly at their rear ends by springs T, which surround the shaft R and have their ends bearing against the under side of the fingers and the` under side of the table.

Each roller carries near its rear end a smallA roller designated s which projects upwardly tions, arms occupying the space between said sections and carrying rollin stops adapted 4to engage the shiftable rol er, and spring means acting on said arms to constantly maintain their stops in engagement with the shiftable roller.

9. The combination of a normally stationary feed roller, a stop roller spring pressed into engagement therewith and adapted to partake of its condition of rest or mot-ion, a drive feed roller, means for bringing said feed rollers into active co- Y the sect-ons, small rollers carried by said arms, a feed roller adapted to coperate with the sectional feed roller, the small rollers on the arms being held in constant engagement with said last mentioned feed roller, and means for bringing said last mentioned feed roller and thev sectional roller into contact.

12. The combination with a printing couple, of a sectional feed roller geared with the couple, a cooperating feed roller, a cam on one member of the couple adapted to more the last mentioned roller into engagement with the lirst mentioned roller. arms occupying the spaces benveenlhesectionsI 'of the sectional roller, small rollers carried h v lsaid arms adapted to engage the. movable feed roller. and springs pressing such arms in the engaging direct-ion.

123. The combination with a printing couple, of a pail of feed rollers, one of which is shiftahle, the other of which is constantly driven, spring pressed stops adapted to engage the shiftable roller, means for moving said shiftable roller into engagement with the driven roller, and a brake acting to lhold the shiftable roller stationary when in normal position.

14. The combination with a printing couple, of a pair of feed rollers, means for driving one of said rollers, means for moving the other roller in'to and out of coperation therewith, a brake for the last mentioned roller when out; of cooperation, and a stop roller in constant engagement with the last mentioned roller.

l5. 'lhe combination with a printing couple, of a pair of feed rollers, means for driving one of said rollers, means for moving the other roller into and out of coperation therewith, a brake for the last mentioned roller when out of coperation, a stop roller in constant engagement with @he last mentioned roller, a shaft, andan' arm thereon carrying said stop roller.

16. The combination of a printing couple, a pivoted bar, a feed roller carried thereby, a roller carried by said bar, a cam on one member of the couple adapted to operate on said last mentioned roller, a driven feed roller into ccperation with which the first mentioned feed roller may come when said cam acts on its roller, and abrake to preventv rotation of the shiftable feed roller when in its normal position.

17. The combination with a printing couple, of a pair of feed rollers, means for driving one of said rollers, means for moving the other roller into and out of coperation therewith, a brake for the lastmen` tioned roller when out of cooperation, stop rollers in constant engagement with the -last mentioned roller, a shaft'. arms thereon carrying said stop rollers, said brake comprising a s hoe mounted on an arm, a set screw for adjusting said arm, and springs acting' individually on the arms carrying the stop rollers.

18. The combination of a rotary printing. drum, a rotary under-running impression platen, a lower feed roller geared with said platen, a shiftable upper feed roller. a Cam on the drum adapted to depress the upper feed roller into eo-action with the lower, a suitable stop at the rear of the line of such co-actiou. such stop being constantly spring pressed into engagement with the upper feed roller and shifting with it.

1S). The combination of a printing couple, a piroted har, a feed roller carried thereby. a roller carried h r said bar, a cam ou one member of the couple adapted to operate on said last mentioned roller, a driven feed roller into coperalion with which the first mentioned feed roller may come when said cam acts on its roller, and a stop 1nearing againstI the. shiftable feed roller under spring pressure and partaking of its condition of rest or movement.

Q0. The combination ofva pair of feed rollers, shiftable one with reference to the other, a stop-roller adapted to bear against one and be shiftable with it, and a brake for that one.

In testimony whereof, I hereunto atlix my signature in the presence. ot' two witnesses.

HENRY C. OSBOR. Witnesses f C. R. Bron'ror., CURT B. MUELLER. 

